Astronauts' hearts grow rounder while they are in space, suggesting that spending lots of time in microgravity could lead to heart problems, according to US research on Saturday. That could mean trouble for people who want to embark on long-term...

WASHINGTON — Women of childbearing age can reduce their risk of heart problems by regularly eating fish rich in omega 3 fatty acids, said a Danish study out Monday. The study is the first to examine younger women, age 15-49, and determine...